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Does the upper roller of a van de graaf generator needs to be inside the sphere?
IIRC no. But you do need a top and bottom comb to couple charge from the top roller to the sphere.
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6-8-2018 at 06:40
by: MJ101
XRumerTest - Why?
Here's a good read about getting rid of forum spam.
https://blog.vanillaforums.com/product/9-ways-t ...
6-8-2018 at 04:14
by: MJ101
"Healthy" drink tasting FOUL!!
[rquote=527803&tid=86772&author=DrP][rquote=527321&tid=86772&author=MJ101]
P.S. Som ...
6-8-2018 at 04:01
by: MJ101
Water desalination in deep sea water - using pressure of the deep - possible?
@j_sum1: That same Bernoulli formula comes into play when considering the aquatic life around the wa ...
3-8-2018 at 18:18
by: MJ101
Bromine Trifluoride small scale production
@Ghass1974: My suggestion to you is to hire a chemical engineer who specializes in halogen chemistry ...
3-8-2018 at 14:37
by: MJ101
The trials & tribulations of Thorium production
@Dan Vizine: I read this thread from stem to stern. Awesome science! Awesome Engineering!

3-8-2018 at 07:35
by: MJ101
"Healthy" drink tasting FOUL!!
[rquote=527299&tid=86772&author=DrP]
I think he is taking the cranberry juice for the infec ...
3-8-2018 at 07:31
by: MJ101
"Healthy" drink tasting FOUL!!
@CaptainPike: I suggest you get yourself checked out by a doctor.

There are dozens of possibiliti ...
3-8-2018 at 05:23
by: MJ101
Essential Oils
@solinium: Thanks for your reply.

Part of me wants to buy both items. :)

That would give me en ...
2-8-2018 at 09:16
by: MJ101
Essential Oils
I've been reading posts since I got here, in the hopes that I could find some chemistry that I could ...
2-8-2018 at 08:15
by: MJ101
like button
@morganbw: It's a good idea, and it's used on many forums.

However, I think that it would require ...
30-7-2018 at 12:16
by: MJ101
Senior Science Fair Ideas?
@Abromination: Have you thought about doing a project involving extraction of essential oils and fra ...
30-7-2018 at 12:09
by: MJ101
This forum needs more moderators
Yeah...that XRunnerTest is a little unnerving. If someone is using that to test, then all is well an ...
30-7-2018 at 11:52
by: MJ101
What is the point of amateur chemistry?
@Abromination: No apology necessary. As far as inappropriate goes, you spoke your mind and your hear ...
30-7-2018 at 11:47
by: MJ101
What is the point of amateur chemistry?
Cou does bring up some interesting points. And he did say that he was playing "devils' advocate".

...
30-7-2018 at 08:45
by: MJ101
Electrical Ark Furnace Req.
Take a look here.

https://www.ebay.com/itm/2Pcs-1000V-50A-Metal-Case-Single-Phase-Diode-Bridge-Re ...
29-7-2018 at 13:57
by: MJ101
Laws regulating chemicals for a tiny home lab
@pharm-phreak: You need to figure out if what you intend to do in your home lab can become dangerous ...
29-7-2018 at 07:16
by: MJ101
Making washing machine water usable for watering crops (or other food source)
@RogueRose: You might want to research "gray water recycling". That will tell you a lot about how to ...
27-7-2018 at 10:31
by: MJ101
Cheap radioisotope sources
@Hunterman2244: Yes it could be unsafe. It all depends on the metal you use as the target plate.
As ...
24-7-2018 at 12:20
by: MJ101
Hydrothermal Synthesis of Sulfides
@Doped-Al2O3-fusion: I've just read about the Verneuil furnace. It's really fascinating.

If you'r ...
24-7-2018 at 11:19
by: MJ101
Cheap radioisotope sources
@Hunterman2244: Try to find the book listed in this link.

http://geoffcain.com/blog/science/diy-6 ...
24-7-2018 at 07:41
by: MJ101
Some fungus growing on grass
@JJay: Please post pictures. Maybe someone can identify them for you.

Here's something I found on ...
24-7-2018 at 07:34
by: MJ101
EPP 15% Sulphuric acid !
What you may end up seeing is what the USA does: Taxation by licensing.

Only licensed plumbers wi ...
24-7-2018 at 07:28
by: MJ101
Tired of reporting spam
[rquote=525034&tid=16937&author=RogueRose]I say all members stop doing the job. we've been d ...
21-7-2018 at 19:10
by: MJ101
Cheap radioisotope sources
[quote=Hunterman2244]An ionization chamber is a simple project. A diy gieger counter is also pretty ...
21-7-2018 at 04:27
by: MJ101
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